Plotting a Graph From a Cell Array

2022 1 28
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更新时间：2022 1 29
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I have a cell array, let's call it A, which is a 4 x 4 cell each containing a 10 x 10 numbers from 1 to 5 (the cell array attached):
A = cell(4,4);
Each cell array is like:
I want to plot a graph for each cell (for just one) and all of the cells (for all 16 cell arrays) in separate code that shows how many of the components are 1, 2,3,4 and 5. Essentially a chart similar to (I don't think Matlab can graph such a chart, but something similar):
"A" here is just one of the frame indices (I have to plot multiple cell arrays). Thank you!

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Voss
Voss 2022-1-28
编辑：Voss 2022-1-28
Ran in:

1 个投票

Ran in:
First, check out the data:
load('A.mat')
whos
Name Size Bytes Class Attributes Kappa_x_num 4x4 171264 cell ans 1x30 60 char
Kappa_x_num{1,1}
ans = 10×10 cell array
{'4'} {'4'} {'1'} {'3'} {'1'} {'1'} {'1'} {'1'} {'5'} {'5'} {'5'} {'1'} {'1'} {'3'} {'1'} {'1'} {'1'} {'5'} {'1'} {'1'} {'1'} {'1'} {'5'} {'3'} {'3'} {'1'} {'1'} {'1'} {'5'} {'1'} {'5'} {'5'} {'1'} {'1'} {'1'} {'1'} {'1'} {'1'} {'1'} {'5'} {'4'} {'5'} {'1'} {'4'} {'1'} {'1'} {'1'} {'1'} {'5'} {'1'} {'5'} {'1'} {'5'} {'3'} {'1'} {'1'} {'3'} {'1'} {'5'} {'1'} {'1'} {'1'} {'3'} {'3'} {'1'} {'1'} {'1'} {'5'} {'5'} {'5'} {'4'} {'1'} {'5'} {'3'} {'1'} {'1'} {'1'} {'1'} {'1'} {'5'} {'1'} {'1'} {'1'} {'1'} {'1'} {'1'} {'1'} {'1'} {'5'} {'5'} {'5'} {'1'} {'5'} {'1'} {'1'} {'1'} {'3'} {'1'} {'5'} {'1'}
Then, do some counting:
[m,n] = size(Kappa_x_num);
max_value = 5;
counts = zeros(m,n,max_value);
for ii = 1:m
for jj = 1:n
for kk = 1:max_value
counts(ii,jj,kk) = nnz(strcmp(Kappa_x_num{ii,jj},num2str(kk)));
end
end
end
disp(counts);
(:,:,1) = 61 74 71 71 100 71 71 100 100 6 100 100 100 100 100 100 (:,:,2) = 0 0 0 0 0 0 0 0 0 37 0 0 0 0 0 0 (:,:,3) = 10 1 3 2 0 1 1 0 0 0 0 0 0 0 0 0 (:,:,4) = 5 0 0 2 0 0 0 0 0 56 0 0 0 0 0 0 (:,:,5) = 24 25 26 25 0 28 28 0 0 1 0 0 0 0 0 0
Then, make a stacked bar graph (rearranging the counts to do so):
counts = reshape(counts,[m*n max_value]);
disp(counts);
61 0 10 5 24 100 0 0 0 0 100 0 0 0 0 100 0 0 0 0 74 0 1 0 25 71 0 1 0 28 6 37 0 56 1 100 0 0 0 0 71 0 3 0 26 71 0 1 0 28 100 0 0 0 0 100 0 0 0 0 71 0 2 2 25 100 0 0 0 0 100 0 0 0 0 100 0 0 0 0
figure()
bar(counts,'stacked');
ax = gca();
set(get(ax,'XAxis'), ...
'TickValues',1:m*n, ...
'TickLabel',arrayfun(@(x)sprintf('%d',x),1:m*n,'UniformOutput',false), ...
'TickLabelRotation',0);
set(get(ax,'XLabel'),'String','frame indices');
set(get(ax,'YLabel'),'String','% of points');
legend( ...
arrayfun(@(x)sprintf('''%d''',x),1:max_value,'UniformOutput',false), ...
'Location','EastOutside');

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MarshallSc
MarshallSc 2022-1-28
Thanks a lot mate!
MarshallSc
MarshallSc 2022-1-29
Sir, how can I compile all of the charts (16) into one bar, so that instead of 16 bars I'd have only one? Basically to see how many points correspond to a value for the 16 cell arrays in one bar. Thank you in advance.
Voss
Voss 2022-1-29
编辑：Voss 2022-1-29
Ran in:
Ran in:
Here's one way. I had to add a second row (of all NaNs) to the input to bar() to get it to do the right thing, and then set the axes XLim afterward. I don't know if there's a better way.
load('A.mat')
[m,n] = size(Kappa_x_num);
max_value = 5;
counts = zeros(1,max_value);
for ii = 1:m
for jj = 1:n
for kk = 1:max_value
counts(kk) = counts(kk) + nnz(strcmp(Kappa_x_num{ii,jj},num2str(kk)));
end
end
end
disp(counts);
1325 37 18 63 157
figure()
bar([counts; NaN(1,max_value)],'stacked');
ax = gca();
set(get(ax,'YLabel'),'String','# of points');
set(ax,'XLim',[0.2 1.8]);
legend( ...
arrayfun(@(x)sprintf('''%d''',x),1:max_value,'UniformOutput',false), ...
'Location','EastOutside');
MarshallSc
MarshallSc 2022-1-29
Thank you again so much!
MarshallSc
MarshallSc 2022-1-29
I'm really sorry to ask you another question, the last one; but if I have multiple data files (A,B,C,...), how can I plot them in one graph? I tried to do that myself but I can't get them all in one graph. For example, I've attached 4 data files (1249,1299, 1349, 1399), could you please help me with this final question ,I'd really appreciate it. Sorry again!
Voss
Voss 2022-1-29
Ran in:
Ran in:
Here's one way you can do it. Some of those files contain stuff that's not '1', '2', '3', '4', '5', so the count total is not 6400.
A = load('1249.mat');
B = load('1299.mat');
C = load('1349.mat');
D = load('1399.mat');
Kappa_x_num = cat(3,A.Kappa_x_num,B.Kappa_x_num,C.Kappa_x_num,D.Kappa_x_num);
[m,n,p] = size(Kappa_x_num);
max_value = 5;
counts = zeros(1,max_value);
for ii = 1:m
for jj = 1:n
for nn = 1:p
for kk = 1:max_value
counts(kk) = counts(kk) + nnz(strcmp(Kappa_x_num{ii,jj,nn},num2str(kk)));
end
end
end
end
disp(counts);
4931 99 655 103 157
figure()
bar([counts; NaN(1,max_value)],'stacked');
ax = gca();
set(get(ax,'YLabel'),'String','# of points');
set(ax,'XLim',[0.2 1.8]);
legend( ...
arrayfun(@(x)sprintf('''%d''',x),1:max_value,'UniformOutput',false), ...
'Location','EastOutside');
MarshallSc
MarshallSc 2022-1-29
Thanks a lot Ben, really appreciate you!

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